I'd get in line early

So here's my big fear for tomorrow, especially in Florida and Ohio. What happens if people are still in line to vote when it comes time to close the polls? Do they get to vote anyway, or will they be told to try again in another four years? And if the election is decided by a razor thin margin, what will be done about those disenfranchised due to nothing more than poor poll planning that could have changed the course of this thing?

Well, one of my big fears, anyway.